While walking around Munich Airport, I came across NapCabs (I like to call them NapPads) small rooms that you can rent to get a quick snooze if you are stuck in the airport for a considerable length of time. It is part of the Relax-Work-Lounge setup. I think these snooze boxes are a great idea and would love to see them spread to all airports. They are officially called nap cabs, which is not such a great name in my opinion. You can read more here.